//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//

package org.eclipse.jetty.util.component;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.FileWriter;
import java.io.Writer;

/**
 * A LifeCycle Listener that writes state changes to a file.
 * <p>This can be used with the jetty.sh script to wait for successful startup.
 *
 * @deprecated use {@code org.eclipse.jetty.server.StateLifeCycleListener} instead
 */
@Deprecated
public class FileNoticeLifeCycleListener implements LifeCycle.Listener {
    private static final Logger LOG = LoggerFactory.getLogger(FileNoticeLifeCycleListener.class);

    private final String _filename;

    public FileNoticeLifeCycleListener(String filename) {
        _filename = filename;
    }

    private void writeState(String action, LifeCycle lifecycle) {
        try (Writer out = new FileWriter(_filename, true)) {
            out.append(action).append(" ").append(lifecycle.toString()).append("\n");
        } catch (Exception e) {
            LOG.warn("Unable to write state", e);
        }
    }

    @Override
    public void lifeCycleStarting(LifeCycle event) {
        writeState("STARTING", event);
    }

    @Override
    public void lifeCycleStarted(LifeCycle event) {
        writeState("STARTED", event);
    }

    @Override
    public void lifeCycleFailure(LifeCycle event, Throwable cause) {
        writeState("FAILED", event);
    }

    @Override
    public void lifeCycleStopping(LifeCycle event) {
        writeState("STOPPING", event);
    }

    @Override
    public void lifeCycleStopped(LifeCycle event) {
        writeState("STOPPED", event);
    }
}
